Voltage and Pulse Rates for Inducing Electrotaxis in Twelve Coastal Pelagic and Bottom Fishes

1972 ◽  
Vol 29 (11) ◽  
pp. 1605-1614 ◽  
Author(s):  
Edward F. Klima
Keyword(s):  
Current Pulse ◽  
Pulse Duration ◽  
Direct Current ◽  
Electrical Characteristics ◽  
System Optimal

Laboratory observations on fish reactions to different voltages and direct current pulse rates provided information on the electrical characteristics needed for inducing electrotaxis for use in a proposed automated harvesting system. Optimal electrical combinations for 12 species of coastal pelagic and bottom fishes varied according to species and length, and ranged from 1.5 to 3.0 v/10 cm at 15–45 pulses/sec with a pulse duration of 1.0 msec.

Influence of Deposition Rate on Microstructure and Optical Properties of Mo Films Fabricated by Direct Current Pulse Sputtering

2016 ◽  
Vol 36 (9) ◽  
pp. 0931001
Author(s):  
赵娇玲 Zhao Jiaoling ◽  
贺洪波 He Hongbo ◽  
王虎 Wang Hu ◽  
郭佳露 Guo Jialu ◽  
贺婷 He Ting
Keyword(s):  
Optical Properties ◽  
Current Pulse ◽  
Deposition Rate ◽  
Direct Current

Wire Electro Discharge Machining of Al/SiC Metal Matrix Composite

2011 ◽  
Vol 121-126 ◽  
pp. 564-567
Author(s):  
Bao Ji Ma ◽  
Yu Quan Zhu ◽  
Xiao Li Jin
Keyword(s):  
Surface Roughness ◽  
Current Pulse ◽  
Pulse Duration ◽  
Cutting Speed ◽  
Machining Performance ◽  
Peak Current ◽  
Positive Effects ◽  
Electro Discharge Machining ◽  
Input Variables ◽  
Pulse On Time

The machining characteristics of SiC/Al composite using wire electro discharge machining (WEDM) were investigated in this study. Material cutting speed and surface roughness value were adopted to evaluate the machinability. Peak current, pulse on time, pulse duration and working voltage were selected as the input variables to investigate the machining performance. Effects of input variables on the cutting speed and surface roughness were experimentally tested. Peak current, pulse on time and working voltage were confirmed to have positive effects on cutting speed and surface roughness value. Whereas the cutting speed and surface roughness value decrease with the increase of pulse duration.

Application of Unheated Cathode Thyratrons for High-Voltage High Current Pulse Series Formation

2008 ◽  
Vol 3 (4) ◽  
pp. 68-73
Author(s):  
Aleksandr V. Akimov ◽  
Petr A. Bak ◽  
Andrey A. Korepanov ◽  
Pavel V. Logachev ◽  
Viktor D. Bochkov ◽  
...  
Keyword(s):  
Current Pulse ◽  
Pulse Duration ◽  
High Voltage ◽  
Anode Voltage ◽  
Dielectric Strength ◽  
Pulse Mode ◽  
Resistive Load ◽  
Anode Current ◽  
High Current ◽  
Strength Recovery

The circuit of modulator, serving to supply inductive-resistive load in double-pulse mode with currents up to 10 kA and pulse duration of 300 ns, is described. As switching components unheated cathode thyratrons (pseudospark switches) TPI1-10k/50 and TPI5-10k/50 with anode voltage up to 50 kV have been used. The results of tests, confirming possibility of the thyratron reverse dielectric strength recovery within some microseconds after switching of 10 kA forward anode current, are presented.

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